McGreevy starts for Cardinals as they host Diamondbacks in Game 4 Thursday

What happened

Michael McGreevy is scheduled to start for the St. Louis Cardinals on Thursday evening as they host the Arizona Diamondbacks in Game 4 of their current home series at Busch Stadium, per Yahoo Sports. Zac Gallen gets the ball for Arizona. First pitch is set for 6:45 PM CT, with the broadcast available on Cardinals.tv.

Why it matters

There is a particular kind of late-June baseball that asks a team to locate its own reasons for showing up, and the 2026 Cardinals are deep in that territory. St. Louis enters Thursday having dropped four straight, sitting 4th in the NL Central and eliminated from both the division race and the Wild Card race. The standings have rendered the remaining schedule a referendum on development, rotation depth, and the kind of organizational questions that don't resolve themselves in a box score — but do get answered, quietly, over the course of a summer like this one.

In that context, McGreevy's start carries weight that has nothing to do with October. A young starter logging innings against a legitimate opponent in a meaningful ballpark setting is exactly the kind of data point a front office files away. Gallen, meanwhile, represents a genuine test: a veteran arm with a track record of keeping lineups honest, which makes Thursday's game a useful measuring stick regardless of where either club sits in the standings.

The matchup also arrives at a moment when the Cardinals have every reason to play loose. Freed from the arithmetic of a playoff chase, a team can sometimes find a cleaner version of itself — or at least a more instructive one. Whether St. Louis takes advantage of that freedom is one of the quieter questions hanging over Busch Stadium this week.

Is McGreevy starting again Friday?

Per the verified probable pitchers on file, McGreevy is also listed as the probable starter for Friday's home game against the Miami Marlins, with Max Meyer going for Miami. That would make back-to-back probable listings for McGreevy across consecutive days — an unusual scheduling note worth watching as the series progresses, since rotation logistics can shift between the time probables are posted and first pitch. Nothing in the available material explains the double-listing, and probable pitchers are subject to change before first pitch.

Where the club stands

The Cardinals are 77-85 (.475), fourth in the NL Central, and 26 games back in the division. Their Wild Card standing sits at rank 7, 11.0 relative to the cut line — also eliminated. The current losing streak stands at four games.

After Thursday's game against Arizona, St. Louis turns its attention to a two-game home set against the Miami Marlins on Friday and Saturday. Andre Pallante is the probable for Saturday's finale against Miami, with Ryan Gusto listed for the Marlins.

Busch Stadium hosts all three of those upcoming contests, which means the Cardinals spend the next several days in front of their home crowd working through a stretch of the schedule that, on paper, offers some opportunity to interrupt the four-game skid. The standings make clear, however, that the arithmetic of a playoff push is no longer part of the conversation — which changes what "opportunity" means in this context, but does not eliminate it entirely.

For a club in this position, the home schedule carries a different kind of value. Fans who show up to Busch Stadium in late June knowing the Wild Card door is closed are there for something other than standings movement. They are there to see what the Cardinals look like when the pressure of contention has been replaced by something quieter — and, arguably, more revealing.

What we don't know yet

Yahoo Sports' game discussion preview does not include lineup details, injury updates, or any indication of how either McGreevy or Gallen has been performing in recent outings. Nothing in the available material addresses whether any roster moves are pending ahead of Thursday's start, nor does it speak to the Cardinals' plans beyond the immediate series.

The double-listing of McGreevy as a probable for both Thursday and Friday has not been explained in the available material. It is worth noting that probable pitchers are subject to change before first pitch, and the Friday listing should be treated as preliminary until the club provides further clarity.

What to watch

The most straightforward thing to track Thursday is how McGreevy fares against a Diamondbacks lineup that has enough quality to expose a young starter's tendencies. Gallen's performance on the other side will offer a useful contrast — a veteran working through the same conditions, giving Cardinals fans a side-by-side look at where the franchise's rotation stands relative to a more established arm.

Beyond the individual matchup, the Cardinals' ability to end a four-game losing streak at home carries its own narrative weight. Not because the standings demand it — they don't, not anymore — but because the habits a team builds in the second half of a lost season tend to echo into the next one. Thursday at 6:45 PM CT is, in that sense, less about the Diamondbacks and more about what kind of baseball the Cardinals choose to play when the pressure of contention has been replaced by something quieter and, arguably, more honest.

The McGreevy-Friday question will also resolve itself soon enough. If he does take the ball against Miami the following evening, the rotation picture in St. Louis will be worth examining more closely. If the Friday listing shifts to another arm, that too tells a story. Either way, Busch Stadium has baseball to offer this week, and the Cardinals have a chance to make some of it worth remembering.